The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2014
Filed:
Aug. 15, 2012
Yen-jen Chen, Taipei, TW;
I-ting Lee, Hsin-chu, TW;
Hsieh-hung Hsieh, Taipei, TW;
Chewn-pu Jou, Hsin-chu, TW;
Fu-lung Hsueh, Kaohsiung, TW;
Shen-iuan Liu, Taipei, TW;
Yen-Jen Chen, Taipei, TW;
I-Ting Lee, Hsin-chu, TW;
Hsieh-Hung Hsieh, Taipei, TW;
Chewn-Pu Jou, Hsin-chu, TW;
Fu-Lung Hsueh, Kaohsiung, TW;
Shen-Iuan Liu, Taipei, TW;
Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chu, TW;
Abstract
One or more techniques and systems for a divider-less phase locked loop (PLL) and associated phase detector (PD) are provided herein. In some embodiments, a pulse phase detector (pulse) signal, a voltage controlled oscillator positive differential (VCOP) signal, and a voltage controlled oscillator negative differential (VCON) signal are received. An up signal and a down signal for a first charge pump (CP) and an up signal and a down signal for a second CP are generated based on the pulsesignal, the VCOP signal, and the VCON signal. For example, CP signals are generated to control the first CP and the second CP, respectively. In some embodiments, CP signals are generated such that the CPs facilitate adjustment of a zero crossing phase of the VCON and VCOP signals with respect to the pulsesignal. In this manner, a divider-less PLL is provided, thus mitigating PLL power consumption.